Space! Cosmologically, this word is only good for a vague reference to a region out beyond the observational point. There is the real VOLUME of the universe and the imaginary infinite extension of the Cartesian coordinates, X Y Z, which we call SPACE.

We mistakenly conflate the two concepts—but they are NOT the same. This false idea of 'space' cannot be reified nor specified, but neither can 'volume' be reified, although it can be specified. An abstract cannot turn into something that stretches, shrinks, curves, warps, or ripples. The MATERIAL inside the volume may ripple, but not volume itself.

Curved space is a staple of 20th century thought—a cliche of science fiction. Generations of science students have succeeded only in warping their minds. Taken for granted amongst the learned—it's bad form to protest the absurdity of curved space.

Bottom line? The mathemagical edifice of Einsteinian concept of relativity, and there being no aether, has a false philosophical foundation—it violates axiomatic metaphysical principles. Space-time is a double reification absurdity. Natural Philosopher Michael Armstrong presents a massive rethink of all this.

Further viewing...

Michael Armstrong: What is Time | Space News

https://www.youtube.com/watch?v=8OvltlOA8XE